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Tanzania [10]
3 years ago
9

Help ASAP please! Please explain it, thanks in advance!

Mathematics
1 answer:
Oliga [24]3 years ago
7 0
Ally ran 5 miles in 36 minutes.
Ally's speed is (5 miles)/(36 minutes) = 0.13888 miles per minute.
At that speed, Ally would run 6 miles in (6 miles)/(0.13888 miles/min) = 43.2 minutes.
Ally runs faster than Sami, so Sami must take longer to run 6 miles than Ally.
The only time that is longer than 43.2 minutes is 48 minutes.
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Find the slope of the line through each pair of points (19,-16) ,(-7,-15)
AnnyKZ [126]
-15--16=1
-7-19=-26
y=mx+b
-26=m(1) +b
6 0
2 years ago
Simplify the expression (sqrt3+i)(sqrt3-i) and write the result in the form a+bi
rjkz [21]

Answer:

4

Step-by-step explanation:

This expression is a difference of squares.

(√3 + i)(√3 - i) = (√3)²-(i)², which is

3 - (-1)

= 3 + 1

= 4

7 0
2 years ago
Fill out the missing values in the table
geniusboy [140]

Step-by-step explanation:

1 = 18

5 = 18 x 4

0.5 = 0.092

3.5 = 0.06

8 0
2 years ago
How many square feet of outdoor carpet will we nees for thois hole?<br><br><br>please help​
Alinara [238K]

The area of the given shape is 220.24 square units.

Step-by-step explanation:

Step 1;

Area of given shape = Area of the entire rectangle - Area of the rectangle - Area of the triangle.

The entire rectangle measures a length of 12 feet and a width of 5 feet. The area of any given rectangle is the multiplication of its length and width.

The area of the entire rectangle= (12)(5) =60 square feet.

Step 2:

A rectangle with length 2 feet and a width of 3 feet is cut out from the entire rectangle so it is subtracted from the entire rectangle's area.

The area of the small rectangle = (length)(width) = (2)(3)=6 square feet.

Step 3:

The area of a triangle = \frac{1}{2} (base length)(height).

The base length of the triangle = 12-(6+2) =12-8 =4 feet and the height of the triangle is 3 feet.

The triangle's area = \frac{1}{2} (base length)(height) = \frac{1}{2} (4)(3)= 6 square feet.

Step 4:

Area of the given shape = 60 - 6 - 6 = 48 square feet.

So 48 square feet of outdoor carpet will be needed.

6 0
3 years ago
The graph of a function g is a
kirill [66]

Answer:

Here we have two concepts.

First, when we have that something, let's call it A, is an x% of another thing, let's call it B.

We have that:

A = (x%/100%)*B

In this case g(x) is 60% of f(x), then:

g(x) = (60%/100%)*f(x) = 0.6*f(x)

And this is called a vertical dilation.

When we have a function f(x), a vertical dilation of scale factor A is written as:

g(x) = A*f(x)

So in this case we have A = 0.6

Then we can write this as:

"g(x) is a vertical dilation of scale factor 0.6 of the function f(x)"

And to solve completely, let's write g(x):

g(x) = 0.6*f(x) = 0.6*(9*x + 5) = 5.4*x + 3

g(x) = 5.4*x + 3

7 0
3 years ago
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